The weather during half a year is seen in the image above. The Sun's slow path across the sky is beautifully captured by this unique image. The Sun´s altitude (it's peak) is reached in midsummer on June 21st in the northern hemisphere. Every day the Sun leaves one line after one. The tracks of the moving Sun are visible and increase progressively from December to June. The missing traces are due to the Sun beeing obscured on overcast days.